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EPA Unveils New Hybrid Truck,
Which Is to Be Tested by UPS

WASHINGTON -- The Environmental Protection Agency rolled out a "hydraulic hybrid" delivery truck that it says will boost fuel efficiency by 60% to 70% in stop-and-go city traffic.

The truck has a system, patented by the EPA, that turns the energy from braking into stored energy that helps to turn the rear wheels. The test models will be delivery trucks used by United Parcel Service Inc., which helped design the prototypes. The U.S. Army, Ford Motor Co. and International Truck & Engine Corp., a unit of...